Device for transferring and doubling knitted webs



L. N. D WILLIAMS.

DEVICE FOR TRANSFERRING AND DOUBLING KNITTED WEBS.

APPLICATION FILED IAN.22 19H3.

Patented Aug. 3, 192D.

o. MLU/Ams LOUIS N. D. WILLIAMS, OF OGONTZ, PENNSYLVANIA.

DEVICE FOR TRANSFERRING AND DOUBLING KNITTED WEBS.

Specification of Letters Patent.v

Patented Aug. 3, 1920.

Application led January 22, 1918. Serial No. 213,197.

To all whom t may concern.'

Be it known that I, LOUIS N. D. Win- LIAMs, a citizen of the United States, residing in Ogontz, Pennsylvania, have invented certain Improvements in Devices for Transferring and Doubling Knitted Webs,y of which the following is a specification.

My invention consists of certain improvements in or additions to the stitch transferring and doubling device shown in the Letters Patent No. 1,068,853, granted July 29, 1913, to myself and Valter D. Buta as assignees of said Walter D. Butz, one object of my present invention being to so mount the hinges of the point carriers as to maintain the proper relation between the axes of the hinges and the tips of the stitch-receiving points; a further object being to arrest, at the proper'time, the swinging of one set of points over the other so as to disp'ose the points tip to tip; and other objects being to insureithe doubllng of the stitches upon the proper set of transfer points, andto prevent accidental release of the stitches from the points after the stitches have been applied to said points.

SomeY of the features of my present invention are also applicable to stitch transferring devices generally, whether or not the stitches are afterward doubled.

In the accompanying drawing Figure 1 is a bottom view of a stitch transferring and doubling device constructed in accordance with my present 1nvention, showing the parts in the positions assumed by them when stitches are being transferred to the points of the device from the needles of a knitting machine;

Fig. 2 is a view partly in elevation and partly in vertical section on the line 2-2,

Fi l l. f

` Figa?) is a view of part of one of'the'point carriers looking toward the inner face of Fig. 4 is an outside view showing some of the points, at one terminal of each set, when the said points are in position for receiving stitches from the needles ofthe. knitting machine; I

Fig. 5 is a similar view showing the relation to each other of the same points when adjusted to position for transferring stitches from'one set of points to the other;

Fig. 6 1s an enlarged sectional view through one of the point carriers and one of the stripper plates, illustrating the duplex character of the stitch-receiving points of each set, and

Fig. 7 is a side elevation of portions of the hinge plates showing the relation of said hinge plates to one another when one of the point carriers has been turned over the other so as to adjust the stitch-receiving points to the position shown in Fig. 5.

In Fig. 2 of the drawing the points which normally would be shown in the distance have been omitted in order to prevent confusion, the planes of the tips of the points being indicated by dot and dash lines.

In the drawing I have shown the stitchtransferring and doubling device as constructed for use in connection with a circular knitting machine, the point carriers 1, l, being each of semi-circular form with semi-circular sets of points projecting longitudinally therefrom, but it should be understood that in constructing the transferring and doubling device for use in connection with a machine having straight needle beds the point carriers will consist of straight bars corresponding to the straight bars of the knitting machine and having straight rows of stitch-receiving points for registering with the straight rows of needles carried by fsaid needle bars.

Instead of the single points shown in the patented device, the points are now disposed in pairs, one of the pair, (indicated at 3,'in Figs. 2 and 6) being on the outside and the other, (indicated at 3a in said figures) being on the inside, so that, in transferring stitches lfrom needles of the knitting machine to said points, the point 3 will pass through a stitch of one lcourse and the point 3a through a stitch of the preceding course, the latter stitch being clamped between the inner and outer points so as to prevent accidental detachment of the web from the points during'the manipulation of the device subsequent to the transfer operation.

In order to 'render the stitch-engaging end of the inner point 3a properly elastic, said point is recessed on its outer face, as shown in Figs. 2 and 6, thus providing an elastic connection between the outer portion ofthe point and the shank of the same, and to permit inward yieldingmovement of the elastic end of the point 3, that face of the transfer ring 13 (hereinafter referred to) which may be adjacent to the point, is beveled.

Each pointcarrier is composed of members v4, 4a between which the shanks of the points 3, 3'* are rigidly confined, the mem.- bers 4, 4' being retalned in their proper confining relation to one another by any suitable means.

The ypoint carriers 1, 1, are hin ed tominal points of the two sets, as shown by the dot in Figs. 4 and 5. In order to provide for the convenient adjustment of the hinge plates so as to pro erlylocate the axes of the hinge pintles, sai plates are provided with slots 7 for the reception of securing bolts or screws 8 which are carried by blocks 9 mounted so as to be adjustable from and ltoward each other on internally projecting flanges 10 on the point carriers 1 and 1", as shown in Figs. 1 and 2, rovision being thus afforded for adjusting t e hinge plates 5, 5 both longitudinally and circumferentially and thereby effecting corresponding adjustment of the axes of the hinge pintles in respect to the stitch-receiving points, movement of the hinge plates in either direction having no effect upon their rigid retention in the opposite direction.

In order to prevent forcible contact of the tips of the points when one set has been turned over so as to point toward the other set, as in Fi l5, each hinge plate 5 has a shoulder 1l Io plate 5 carries a stop finger 1,2, as shown in Figs. 2 and 7, whereby, when one point carrier is turned over the other, in order to bring the points into the relation with each other shown in Fig. 5, the stop plate 12 will contact with the shoulder 11, as shown in Fig. 7, so as to prevent further swinging movement of one carrier in respect to the other in that direction, thereby arresting the points with their tlps ap reaching or barely in contact with one another, as shown in Fig. 5. Bearing against the members 4 of the point carriers 1, 1, are stripper plates 13, 13, with teeth 14 projecting between the successive airs of points, 3, 3, hence, by

moving eitllfer plate away from the member 4 of the point carrier, the stitches will. be stripped rom the points 3, 3 of said car- Each of the st/ripper plates 13, 13 has a pair of rods 15 passing through and guided 1n suitable openlngs in the members 4, 4 of Vthe correspondm point carrier, and each of these pairs of ro s carries, at they inner ends of the rods, a presser plate`16 or 16?, which,

when pressed upon .by the thumb or finger,

rmed upon it, and the other` doubled with the stitches already uponthe` corresponding points of the other set, and, in order that this stripping movement may always be effected in connection with onev and the same set of points, the presser plate 16 is provided with a locking lever 17 whichengages a notch 18 in the outer flange or rim 19 of the point carrier 1, as shown in Figs. 1 and 2. Projection of the stripper plate 13 is therefore normally prevented, and the normal transfer of stitches is from the points of the carrier 1 to those' of the carrier 1.

In order, however, to permit stripping of thestitches from the points of the carrier l, when desired, `the lever 17 is pivotally mounted, and can, therefore,l be vreadily withdrawn vfrom engagement with the notched portion of the rim 19 when desired.

When the stitches have been doubled upon the points of the carrier 1, the carrier 1ll may be turned back to its normal position, as shown in Figs. 1 and 2, andthe device may then be applied to the intermittently moved member of an ordinary looping machine whereby the successive pairs of stitches are presented i successively to the needles or other looping devices of said machine,whether said stitches remain uponthe points 1,l or are transferred therefrom to corresponding points of the looping ma,

chlne.

.As the looping devices always bear a fixed circumferential relation to the member of the looping machine upon lwhich the point carrierv is mounted, it is ladvisable to pro- -vide means for circumferentially adjusting said point carrier so that the looping device will properly register with the stitch-carrying points, and for this purpose I provide said point carrier with a projecting pin 20,v

for engaging a vertical slot in the intermittently movable member of the looping ma chine, said pin 20 projecting through a slot 22 in the rim-19 of the point carrier, and

being carried by a plate 21 which is adjustblocks and'hinge plates adjustable longif tudinally on said blocks, whereby either adjustment can be effected .independently of and Without affecting the other.

2. In a device for doubling the stitches of knitted webs, the combination of two sets of stitch-receiving points, a carrier for each set, said carriers being so supported that one can be folded over the other, and a plate Jfor stripping stitches from one set of points and applying them -to `the other7 said stripper plate having rods guided in and 'projecting longitudinally beyond the point carrier, and a segmental presser plate mounted upon the inner ends of said rods.

3. In a stitch-transferring device for knitted webs, the combination of a point carrier, with duplex stitch-receiving points, one inwardly beyond the other and having transversely separated ends, whereby a stitch, applied longitudinally to an inner point, will as it is moved along the point to which it has been applied be clamped between the same and the outer point.

et. In a stitch-transferring device for knitted webs, the combination of a point carrier with duplex stitch-receiving points, one inwardly beyond the other` and having transversely separated ends, whereby a stitch, applied longitudinally to an inner point, will as it is moved along the point to which it has been applied be clamped between the same and the outer point, one of said points being recessed inwardly from its outer end so as to increase the elasticity of the' portion outwardl beyond the recess.

In testimony whereofY I have signed my name to this specification.

LOUIS N. D. WILLIAMS. 

